What is a glass curtain wall?

Glass curtain wall refers to a building envelope or decorative structure that is composed of a supporting structure system and glass, has a certain displacement capacity relative to the main structure, and does not share the effects of the main structure. There are single and double glazed walls. The reflective insulating glass is 6 mm thick and the wall itself weighs about 40kg/㎡. It is light and beautiful, not easy to pollute, and saves energy. The inner side of the outer glass of the curtain wall is coated with colored metal coating. From the appearance, the entire outer wall is like a mirror, reflecting the sky and the surrounding environment. When the light changes, the image is colorful and ever-changing. Under the reflection of light, the interior is not exposed to strong light and the vision is soft. China first used it in the Great Wall Hotel project in Beijing in 1983. How are glass curtain walls made? Glass curtain wall refers to the mirror glass used as decoration for building exterior walls. It is composed of float glass with trace amounts of Fe, Ni, Co, Se, etc. added and tempered to make transparent plate glass. It can absorb infrared rays and reduce The solar radiation entering the room reduces the indoor temperature. It can both reflect light like a mirror and transmit light like glass.

The glass curtain walls of modern high-rise buildings also use insulating glass that is a combination of mirror glass and ordinary glass, with dry air filling the interlayer. There are two layers of insulating glass and three layers of insulating glass. Two-layer insulating glass is composed of two layers of glass and a sealed frame to form a mezzanine space; triple-layer glass is composed of three layers of glass to form two mezzanine spaces. Insulated glass has the advantages of sound insulation, heat insulation, anti-frost, moisture-proof, and high wind pressure resistance. According to measurements, when the outdoor temperature is -10°C, the temperature in front of the single-layer glass window is -2°C, while the indoor temperature using triple-layer insulating glass is 13°C. In summer, double-layer insulating glass can block 90% of solar radiation heat. Sunlight can still pass through the glass curtain wall, but most people won't feel hot when exposed to the sun. Rooms using hollow glass curtain walls can be warm in winter and cool in summer, which greatly improves the living environment. Classification and composition 1. Exposed frame glass curtain wall Exposed frame glass curtain wall is a glass curtain wall with metal frame components exposed on the outer surface. It uses an aluminum alloy profile with a special cross-section as the frame, and the glass panel is fully embedded in the groove of the profile. Its characteristic is that the aluminum alloy profile itself has the dual functions of skeleton structure and fixed glass.

2. Hidden-frame glass curtain wall

The metal frame of the hidden-frame glass curtain wall is hidden on the back of the glass, and the metal frame is not visible from the outside. Hidden frame glass curtain walls can be divided into two types: fully hidden frame glass curtain walls and semi-hidden frame glass curtain walls. Semi-hidden frame glass curtain walls can be horizontally bright and vertically hidden, or vertically bright and horizontally hidden. The structural characteristics of the hidden frame glass curtain wall are: the glass is on the outside of the aluminum frame, and silicone structural sealant is used to bond the glass and the aluminum frame. The load of the curtain wall is mainly borne by the sealant.

3. Point-supported glass curtain wall

Point-supported glass curtain wall is a new support method that has appeared in recent years. But once it appeared, it developed rapidly in the city.